code: def __init__(self):
      self._registry = []
  
file_path: mlflow/mlflow/tracking/request_header/registry.py
imports: import logging
  import warnings
  import entrypoints
  from mlflow.tracking.request_header.databricks_request_header_provider import DatabricksRequestHeaderProvider
  from mlflow.tracking.request_header.default_request_header_provider import DefaultRequestHeaderProvider
label_desc: Use image node_id 1 to create a new RequestHeaderProviderRegistry object  with example: obj = RequestHeaderProviderRegistry()